The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1982
Filed:
Sep. 08, 1980
Basily B Basily, Cairo, EG;
Mihir K Das, Selly Park, GB;
Clifford G Price, Stourbridge, GB;
Stephen A Tobias, Selly Park, GB;
National Research Development Corporation, London, GB;
Abstract
A method of shearing a workpiece, for example a metal billet or bar, and apparatus for carrying out that method. Before being subjected to linear shear, the billet is first subjected to substantial torque about an axis perpendicular to the plane of shear. The billet is held by two pivoting arms, the predominant torque of the first stage of the method is achieved by allowing the pivot points of the arms to slide as the arms turn, and the predominant shear of the second stage is then achieved by arresting that sliding movement by stops. The parts of the arms which grip the workpiece may bear against a fixed surface during the whole operation, so holding the axis of the workpiece to a constant location.